Digital FDD LTE Single Band RF Repeater

Most Popular

Product Detail

Basic Info

Trademark:HELIOS

Specification:ISO9001, ISO9002, CE

Origin:China

Product Description

Description

Long Term Evolution &lpar;LTE&rpar; is a standard for wireless communication of high-speed data based on GSM and UMTS network technologies&period; The standard has been developed by the 3rd Generation Partnership Project &lpar;3GPP&rpar;&period; The goal of LTE is to increase the capacity and speed of wireless data networks&period; LTE standard has been developed in TDD and FDD versions&period;

While both LTE TDD &lpar;TD-LTE&rpar; and LTE FDD will be widely used&comma; it is anticipated that LTE TDD will be the more widespread and deployed&comma; because LTE TDD has a number of significant advantages&comma; especially in terms of higher spectrum efficiency that can be used by many operators&period;

For operators&comma; they must optimize their network and offer best service to users to improve their competitive ability&period; However&comma; and 3G signals attenuate severely when traveling through walls&comma; floors&comma; and windows&comma; leaving more than 40&percnt; of all indoor spaces with inadequate coverage and poor data throughput&period; Then the operators need a cost-effective solution to resolve such coverage problems easily and rapidly&period;

Repeaters&comma; Boosters and Amplifiers for mobile network are to relay RF signals for both uplink and downlink&comma; they are effective tools to enhance mobile network coverage for telecom operator&comma; but there are one of the key technologies for the Repeaters&comma; Boosters and Amplifiers with TDD mode must be first resolved&comma; which is Frame Synchronization&comma; without accurate & reliable TDD Frame Synchronization arithmetic&comma; the Repeaters will be unable to be normally switched between the different time-slots for uplink and downlink&comma; even will cause big interference in network&period;

Helios TDD-Mate series TD-LTE RF Repeaters are specially designed for the TD-LTE systems with the own patented TDD-Mate Series TDD SYNC Module&comma; which is basis on FPGA & DSP &lpar;Digital Signal Processing&rpar; platform with Helios patented TDD Frame Synchronization arithmetic&comma; It receives TDD signals from BTS and down-converts to IF signals firstly&comma; then digitalizes the signal via high speed ADCs &lpar;Analogue to Digital Converter&rpar; and implements baseband digital demodulation on DSP&comma; and finally identifies DwPTS &lpar;Downlink Pilot Time Slot&rpar; including Primary Synchronization Signal and Secondary Synchronization Signal to acquire the switch point between UpPTS &lpar;Uplink Pilot Time Slot&rpar; and DwPTS by verifying correlation between the local Primary & Secondary Synchronization Code and demodulation signals basing on the correlation property of Synchronization Code&period; The synchronization accuracy can reach to 99&period;9&percnt; with Helios patented TDD Frame Synchronization arithmetic&period;

Feature

Support single band TD-LTE2300MHz&comma; 2500MHz and 2600MHz&period;Built-in Patented frame synchronization algorithm for TDD system to ensure accurate synchronization and eliminate interfere to Donor BTS&period;High working gain as Min&period; 85dB significantly improves 4G TD-LTE network capacity for operators&period;RF output power &plus;27 to 33dBm for medium coverage area&period;Accurate ALC & AGC for each time-slot basis on high speed FPGA to ensure reliable working&period;Innovative Digital Filtering technology basis on DSP and SDR to provide excellent signal selectivity and minimum time delay&period;Significantly improve data rates in both weak signal areas and most area with good signal areas&period;Lower cost of indoor coverage and rapidly increases capacity of 3G or 4G wireless networks&period;Significantly improve Battery Life of subscribers' handset and UE&period;Automatic Gain Control &lpar;AGC&rpar; continuously monitors path loss and transmit power to deliver max gain&period;Support upgrading in case of frequency re-farming by software&period;Built-in wireless modem for remote monitoring by SMS&comma; GPRS or TCP&sol;IP&period;